Shuttle box control mechanism for looms



PATBNTED SEPT. 20, 1904.

0. & W. W. PEGK. SHUTTLE BOX CONTROL MECHANISM FOR LOOMS,

APPLICATION FILED NOV. 2, 1903.

3. BHEETS-SHEBT 1.

N0 MODEL.

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- PATENTED SEPT. 20, 1904.

O. & W. W. PEOK.

SHUTTLE BOX CONTROL MECHANISM FOR LOOMS.

APPLICATION FILED NOV. 2, 1903.

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NO MODEL.

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No, 770,4 1. PATENTED SEPT. 20, 1904.

0. 8: W. W; PEGK. SHUTTLE BOX GONTROL MECHANISM FOR LOOMS.

APPLICATION mun NOV. 2, 1903. N0 MODEL, 3 smms-s11nm s.

WWI/WM 0? gai jc MAM ifi M UNITED STATES Patented September 20, 1904.

PATENT @EETCE.

CHRISTOPHER PECK AND WALTER WINSTANLEY PEGK, OF WEST DIDSBURY, ENGLAND.

MECHANISM FOR Looms.

SPECIFICATION forming part of Letters Patent No. 770,4:41, datedSeptember 20, 1904.

Application filed November 2, 1903. Serial No. 179,28. (No model.)

To aZZ whom it may concern:

Be it known that we, CHRISTOPHER PEOK and WALTER WINSTANLEY PECK,subjects of the King of Great Britain and Ireland, residing at 230Burton road, West Didsbury, Lancashire, England, have invented certainnew and useful Improvements in Shuttle-Box-Control Mechanism for Looms,(for which we have filed application for British Patent No. 26,130,dated November 27, A. D. 1902;) and we do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

Our said invention relates to improvements in or applicable to that partof the mechanism of a drop-box loom which controls and operates therising and falling shuttle-boxes, and more particularly to suchmechanism for the said purpose in which the selection of the box to beused is determined by perforated plates or cards governing the relativepositions of disks the rotation of which effects the actual shifting ofthe shuttle-boxes. Such mechanism for controlling the sequence of andoperating the shuttle-boxes is fully described in the specification ofthe patent of Cowburn and Peck, No. 563,020, of June 30, A. D. 1896.

Our present invention has for its subjectmatter improvements in theconstruction, arrangement, and mode of operating the component parts ofthe shuttle-changing mechanism therein described, and we wish it to beunderstood that we herein claim nothing described or claimed in thebefore-cited prior patent specification.

In the drawings appended hereto, Figure l is a side elevation. Fig. 2 isa plan. Fig. 3 is a back elevation as seen in the direction of theAarrow 00 and partly in section on the plane A One part of our saidinvention relates to the means for operating the intermittently-actingracks o, by which the disks f are rotated. The racks o are connected toan oscillating lever 3', having a fulcrum fixed at 1 and provided with aslide-block l connected by a pin 1 to a rotating wheel, so that as thelatter r0- tates it acts as a crank and causes the oscillating lever jto swing about its fulcrum 1. The connection between the crank-pin andthe oscillating lever 1' may be by means of a sliding sleeve or otherlike means adapted to travel to and from the fulcrum of the oscillatinglever as the crank or the rotating element which acts as such revolves.The fulcrum 1 of the oscillating lever j isso placed with regard to thecourse of the crank-pin 1 that during that part of its course where itoperates to pull downthe rack the crank-pin 1 is nearest to the fulcrum1 of the oscillating lever. Besides having one arm 1 ofthe leveroperating the one rack 2; there is a similar arm, 2, parallel theretoand secured to the other rack. or sleeve 1 turning on the shaft 1, whichforms the fulcrum in such a way that the entire piece 1 1 2 forms a kindof forked lever, the whole operating together as the crank-pin 1revolves.

Another part of our said invention relates to the means for rotating thecard-barrel 0?). The latter is carried atthe upper end of a lever cl),having afulcrum fixed at 0 6 The lower end of the said lever is providedwith a bowl 0 biewhich bears against the periphery of a cam c 6*,rotating with (and preferably formed integral with) the crank or wheel8, which operates the oscillating lever already described. The cam 0 5*has a twofold functionviz., to oscillate the lever'c b, carrying thecard-barrel. and also to govern the finger (or fingers) c b", whichworks the star-wheel c I), by which the card-barrel is rotated Thefinger c b is mounted on one arm 0 b of a two-armed lever. The otherarm, 0 6 takes against the periphery of the cam 0 Z), which thus,according to the position of the swellas the cam rotates, determines theposition of the finger c b and enables it either to act so as to rotatethe star-wheel or to allow the latter to pass clear of the finger on itsback stroke.

In the general construction and arrangement shown in the drawings wedrive the crank which operates the oscillating lever j and the cam 0 Z),which operates the cardbarrel from the crank-shaft 0 s of the loom,

i through tooth-gearing 4: and 3 of such a ratio Both arms are connectedby a boss as to give the proper relative velocity of the cam and crank.In ordinary looms this ratio is usually two to one. In some cases(dependent on the particular construction of the loom and the directionof rotation of the crankshaft) it may be necessary to interpose an invcrank-shaft, and thus the difficulty of fitting and adjusting which hasbeen experienced when the parts are carriedby separate brackets orframes is minimized.

The rotary motion of the cam 0 bf need not necessarily be derived fromthe crank-shaft c s, but may be derived from any other suitable rotatingelement of a loomas,'for instance, from the tappet-shaft.

The particular form of darts d (shown in the drawings and whosepositions are determined by the cards on the card-barrel) aredirectacting darts, acting directly on the disks f, and are normallypulled toward each other by a spiral spring 03. When it isrequired tooperate the disks by hand, the darts are drawn asunder, thus freeing thedisks. When again released, they spring back into their normal workingposition. This construction of darts forms no part of our presentinvention and is not claimed herein.

Although we have herein described our said invention as appliedtoaspecific construction of rotating elementsviz., disks controllingcompound cranks such as described in the before-cited specification itis to be understood that it is also applicable to cases where otherequivalent rotating elements, such as compound eccentrics having anintermittent rotation derived from reciprocating racks, are employed.

What we claim as our invention, and desire to secure by LettersPatent,is

. 1. In shuttle-changing loom mechanism, the combination withbox-selecting devices and reciprocating parts for rotating the same, ofan oscillating lever, having arms for actuating 'rel on one arm andbearing directly on the cam w th the other arm and anosc1llat1ngle-Iver, carrying a finger on one arm for turning the cardbarrel andbearing directly on the cam with the other arm substantially asset forthand shown.

3. In a shuttle-box-changing apparatus of e a loom operated by devicesintermittently rotated by reciprocating racks controlled by acard-barrel, the combination with such racks and card-barrel of a cam 0I), the levers c b and 0'12, bearing directly thereon a crankpinrevolvingsimultaneously with the said cam,

' and the lever y' connected therewith the whole constructed arrangedand operating substantially as and for the purpose set forth and shown.

i. In a shuttle-box-changing apparatus of a'loom operated by devicesintermittently rotated by reciprocating racks controlled by acard-barrel, the combination withsuch racks and card-barrel of a cam cb, the levers 0 b and 0 Z), bearing directly thereon a crank-pinrevolving simultaneously with the said cam and the lever 7' connectedtherewith and gearwheels such as 3 and 4 for imparting rotary motion tothe whole combinationfrom the crank-shaft or other rotating element of aloom, the whole constructed arranged and operating substantially as andfor the purpose hereinbefore set forth and as shown in the accompanyingdrawings.

In witness whereof we have hereunto set our hands in the presence of twowitnesses.

CHRISTOPHER IECK. WALTER WINSTANLEY PEOK.

Witnesses:

JoHN H LL, G. W. TUNsTALL.

